diff --git a/packages/kbn-pm/dist/index.js b/packages/kbn-pm/dist/index.js
index 6c64d0bd2ca00..d04285f60b561 100644
--- a/packages/kbn-pm/dist/index.js
+++ b/packages/kbn-pm/dist/index.js
@@ -8945,7 +8945,12 @@ const BootstrapCommand = {
 
     if (forceInstall) {
       await time('force install dependencies', async () => {
-        await Object(_utils_bazel__WEBPACK_IMPORTED_MODULE_9__["runBazel"])(['run', '@nodejs//:yarn'], runOffline);
+        await Object(_utils_bazel__WEBPACK_IMPORTED_MODULE_9__["runBazel"])(['run', '@nodejs//:yarn'], runOffline, {
+          env: {
+            SASS_BINARY_SITE: 'https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/node-sass',
+            RE2_DOWNLOAD_MIRROR: 'https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/node-re2'
+          }
+        });
       });
     } // build packages
 
diff --git a/packages/kbn-pm/src/commands/bootstrap.ts b/packages/kbn-pm/src/commands/bootstrap.ts
index cf425264ab6d6..26ca93d26c052 100644
--- a/packages/kbn-pm/src/commands/bootstrap.ts
+++ b/packages/kbn-pm/src/commands/bootstrap.ts
@@ -83,7 +83,14 @@ export const BootstrapCommand: ICommand = {
 
     if (forceInstall) {
       await time('force install dependencies', async () => {
-        await runBazel(['run', '@nodejs//:yarn'], runOffline);
+        await runBazel(['run', '@nodejs//:yarn'], runOffline, {
+          env: {
+            SASS_BINARY_SITE:
+              'https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/node-sass',
+            RE2_DOWNLOAD_MIRROR:
+              'https://us-central1-elastic-kibana-184716.cloudfunctions.net/kibana-ci-proxy-cache/node-re2',
+          },
+        });
       });
     }